As I pump telemetry data from my Raspberry Pi, I could see my CSV file created/updated. Just go to the container view in your BLOB storage, and download the CSV file.

Below is what my event data stream looks like. It shows event data points captured from two Raspberry Pis, one using the MPL3115 temperature sensor (part of the Xtrinsic sensor board), and another using MCP9808 temperature sensor. The fun begins as I could write some funky transformation logic in the query and do some real-time complex event processing.